Building gm2 devel branch on gcc-12

[john o goyo]

Greetings, all.

Now the build has stopped as follows.

gmake[3]: Entering directory '/home/build/opt/gcc/bld/gm2/gcc'
unset CC ; m2/boot-bin/mklink -s --langc++ --exit --name mainmcinit.c 
../../../src/gcc-git/gcc/m2/init/mcinit
m2/boot-bin/mklink: Shared object "libstdc++.so.6" not found

Note:

duplex$ lf /usr/lib/libstdc++.so*
/usr/lib/libstdc++.so@      /usr/lib/libstdc++.so.9@ 
/usr/lib/libstdc++.so.9.0


I do not understand this.  Should mklink not accept libstdc++.so rather 
than the specific libstdc++.so.6?

Sincerely,
john